Dust removal heating furnace

Abstract

The utility model provides a dedusting heating furnace, which relates to the technical field of heating furnaces and comprises a furnace body, a filtering device and a processing device. The filtering device is connected with the dust discharging channel, the filtering device comprises a filtering and absorbing pipeline and a separating box, an absorbing pump is arranged on the filtering and absorbing pipeline, a feeding port and an air outlet are formed in the separating box, a conical discharging channel is formed in the bottom of the separating box, and a discharging port is formed in the discharging channel. The feeding port is formed above the conical discharging channel, one end of the filtering and absorbing pipeline is connected with the dust discharging channel, and the end, away from the furnace body, of the filtering and absorbing pipeline is connected with the feeding port; according to the dedusting heating furnace, smoke generated by the furnace body can be effectively filtered in time, the health of workers and the working environment are effectively protected, and normal operation of workshop work is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a dust removal heating furnace. Background Art

[0002] A heating furnace is a device that heats materials or workpieces to the rolling and forging temperature. Heating furnaces include continuous heating furnaces and chamber heating furnaces. Heating furnaces used for metal heat treatment are also called heat treatment furnaces. Furnaces that heat steel ingots before initial rolling or make the internal temperature of the steel ingots uniform are called soaking furnaces. In a broad sense, heating furnaces also include soaking furnaces and heat treatment furnaces.

[0003] A Chinese invention patent with publication number CN105671284A discloses a profile heating furnace, including a furnace body, an air inlet and an air outlet, and a flame nozzle is arranged in the furnace body. A feed port and a discharge port are arranged on both sides of the furnace body, a feed roller is arranged inside the furnace body corresponding to the feed port, and a discharge roller is arranged inside the furnace body corresponding to the discharge port, and the feed roller and the discharge roller are connected to a transmission device. A push rod is arranged below the feed roller, and after the feed roller conveys the strip aluminum material to the position, the push rod pushes the strip aluminum material away from the feed roller. A chain belt or a support frame is arranged between the feed roller and the discharge roller, and the chain belt rotates to convey the strip aluminum material to the discharge roller or the strip aluminum material directly rolls on the support frame to the discharge roller. In the process of heating the strip aluminum material in the profile heating furnace, the strip aluminum material can roll or a certain interval is maintained between each strip aluminum material, so that the strip aluminum material is heated very evenly.

[0004] However, a lot of smoke and dust will be generated when aluminum is heated and taken out of the furnace, and the workshop will be shrouded in smoke and dust. If the smoke and dust are directly discharged, it will not only pollute the environment, but also affect the normal work of the workshop and even affect the health of researchers, creating a bad working environment. Utility Model Content

[0005] Based on this, in order to solve the problem that a large amount of smoke and dust will be generated when the aluminum material is heated out of the furnace, which will not only pollute the environment, but also affect the normal work of the workshop, and even affect the health of researchers, causing a bad working environment, the purpose of this utility model is to provide a dust removal heating furnace, and its specific technical solution is as follows:

[0006] A dust removal heating furnace comprises a furnace body and a filtering device processing device, wherein a dust exhaust channel is arranged on the furnace body; the filtering device is connected to the dust exhaust channel, the filtering device comprises a filtering absorption pipe and a separation box, the filtering absorption pipe is provided with an absorption pump, the separation box is provided with a feed port and an air outlet, a conical feeding channel is arranged at the bottom of the separation box, the feed port is arranged above the conical feeding channel, one end of the filtering absorption pipe is connected to the dust exhaust channel, and the end of the filtering absorption pipe away from the furnace body is connected to the feed port.

[0007] Furthermore, a filter plate is installed in the separation box, and a plurality of through holes are arranged on the filter plate. A filter chamber is located below the filter plate in the separation box, and an exhaust chamber is located above the filter plate in the separation box. The filter chamber and the exhaust chamber are connected, the feed port is arranged on the filter chamber, and the air outlet is arranged on the exhaust chamber. A fixing part is arranged at one end of the filter chamber away from the filter plate, and the fixing part is fixedly connected to the inner wall of the filter chamber. A plurality of filter cloth bags are evenly arranged on the filter plate, and a pulling structure is arranged at one end of each filter cloth bag away from the filter plate, and the pulling structure is connected and elastically tensioned between the filter cloth bag and the fixing part.

[0008] Furthermore, two sealing rings are axially spaced apart on the outer side surface of the upper end of each filter bag, and an annular sealing groove matching the filter plate is formed between the two sealing rings. A clamping piece is arranged from top to bottom in the upper port of each filter bag, and the clamping piece is connected to the two sealing rings.

[0009] Furthermore, a back-flushing device for cleaning each filter bag with a back-flushing airflow is provided above the filter plate, and the back-flushing device applies a back-flushing airflow pressure of 1000Pa-3500Pa to each filter bag.

[0010] Furthermore, a flame arrester is arranged in one end of the filtering and absorbing pipeline away from the furnace body.

[0011] Furthermore, the flame arrester includes a first shell, a second shell and a fire arrester plate, the fire arrester plate is fixed between the first shell and the second shell by bolts, a feed pipe is provided on the end of the first shell away from the fire arrester plate, and the feed pipe is connected to the filter absorption pipe, and a discharge pipe is provided on the end of the second shell away from the fire arrester plate, and the discharge pipe is connected to the feed port.

[0012] Furthermore, two fire-blocking components are provided in the flame arrester, one of which is fixed between the first outer shell and the fire-blocking plate, and the other is fixed between the second outer shell and the fire-blocking plate, and the two fire-blocking components are provided with side fire outlets and a central fire outlet, and the central fire outlet is located in the middle of the fire-blocking components.

[0013] Furthermore, the side flaring ports evenly surround the central flaring port, and a cross section of the central flaring port is larger than a cross section of the side flaring ports.

[0014] Furthermore, a material clearing mechanism is provided on the conical material discharge channel, and the material clearing mechanism includes a scraper, a rotating shaft and a motor, the scraper is sleeved on the rotating shaft, and the motor is arranged on the outer side of the conical material discharge channel and connected to the rotating shaft.

[0015] Furthermore, a material collecting box is provided at the bottom of the conical material discharge channel.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the dust removal heating furnace of the utility model is provided with a filtering device, and the filtering device is connected to the dust exhaust channel on the furnace body, which is used to filter a large amount of smoke generated during the heating process. The filtering device includes a filtering absorption pipe and a separation box. The filtering absorption pipe is provided with an absorption pump, which is used to absorb the smoke in the furnace body into the separation box. At this time, the smoke enters from the feed port and is filtered. The filtered smoke is discharged through the conical feeding channel, and the remaining gas after filtering is discharged from the air outlet. By providing the conical feeding channel, the smoke is more concentratedly gathered, which is convenient for the discharge and collection of the smoke. The dust removal heating furnace of the utility model can effectively filter and process the smoke generated by the furnace body in a timely manner, effectively protect the health of the workers and the working environment, and ensure the normal operation of the workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention may be further understood from the following description in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same figure numerals designate corresponding parts.

[0018] Figure 1 It is a structural schematic diagram of a dust removal heating furnace according to an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional view of a separation box according to an embodiment of the utility model;

[0020] Figure 3 yes Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 is a cross-sectional view of a flame arrester according to an embodiment of the utility model;

[0022] Figure 5 A side view of a flame arrester component of a flame arrester according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Furnace body; 2. Filter device; 21. Filter absorption pipeline; 22. Separation box; 221. Feed inlet; 222. Air outlet; 223. Conical discharge channel; 224. Filter plate; 225. Filter chamber; 226. Exhaust chamber; 227. Fixing part; 228. Filter bag; 2281. Sealing ring; 2282. Clamping part; 229. Pulling structure; 23. Absorption pump; 24. Backflush device; 25. Flame arrester; 251. First shell; 252. Second shell; 253. Fire arrester plate; 254. Fire arrester; 255. Side fire outlet; 256. Center fire outlet; 26. Cleaning mechanism; 261. Scraper; 262. Rotating shaft; 263. Motor; 27. Collecting box. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0029] like Figure 1-5As shown, a dust removal heating furnace in one embodiment of the utility model comprises a furnace body 1 and a filter device 2, the furnace body 1 is provided with a dust exhaust channel; the filter device 2 is connected to the dust exhaust channel and is used to filter a large amount of smoke generated during the heating process, the filter device 2 comprises a filter absorption pipeline 21 and a separation box 22, the filter absorption pipeline 21 is provided with an absorption pump 23, the separation box 22 is provided with a feed inlet 221 and an air outlet 222, the bottom of the separation box 22 is provided with a conical discharge channel 223, the feed inlet 221 is provided at the conical discharge channel Above the channel 223, one end of the filtering and absorbing pipe 21 is connected to the dust exhaust channel, and the end of the filtering and absorbing pipe 21 away from the furnace body 1 is connected to the feed port 221. The absorption pump 23 is used to absorb the smoke in the furnace body 1 into the separation box 22. At this time, the smoke enters from the feed port 221 and is filtered. The filtered smoke is discharged through the conical discharge channel 223, and the remaining gas after filtration is discharged from the outlet 222. By setting the conical discharge channel 223, the smoke can be gathered more concentratedly, which is convenient for the discharge and collection of smoke.

[0030] Please refer to Figure 2-Figure 3As a preferred embodiment of the present invention, it may also have the following additional technical features: a filter plate 224 is installed in the separation box 22, and a plurality of through holes are arranged on the filter plate 224. A filter chamber 225 is located below the filter plate 224 in the separation box 22, and an exhaust chamber 226 is located above the filter plate 224 in the separation box 22. The filter chamber 225 and the exhaust chamber 226 are connected. The feed inlet 221 is arranged on the filter chamber 225, and the air outlet 222 is arranged on the exhaust chamber 226. A fixing member 227 is arranged at one end of the filter chamber 225 away from the filter plate 224, and the fixing member 227 is fixedly connected to the inner wall of the filter chamber 225. Next, a plurality of filter bags 228 are evenly arranged on the filter plate 224, and a pulling structure 229 is provided at one end of each filter bag 228 away from the filter plate 224. The pulling structure 229 is connected and elastically tensioned between the filter bag 228 and the fixing member 227. Since the lower end of the filter bag 228 is connected to the pulling structure 229 and the filter bag 228 is axially tensioned under the force of the pulling structure 229, the filter bag 228 is prevented from swinging, and collision between the filter bags 228 due to swinging is avoided. In this embodiment, at least one collar is provided on the outer side of the bag body of the filter bag 228. It is used to limit the radial expansion and contraction range of the filter bag 228 to a certain extent, and to suppress the deformation of the filter bag 228, thereby improving the service life of the filter bag 228; in addition, in the present embodiment, the pulling structure 229 is configured as an elastic member, such as a spring tensioner, one end of the spring tensioner is connected to the end of the filter bag 228 away from the filter plate 224, and the other end of the spring tensioner is connected to the fixing member 227, and the outside of the spring tensioner has a shell to protect the internal elastic element, thereby preventing the influence of dust. Since the pulling structure 229 is connected and elastically tensioned between the filter bag 228 and the fixing member 2 27, the distance between the filter plate 224 and the fixing member 227 is certain. After the filter bag 228 is installed, the force exerted by the pulling structure 229 on the filter bag 228 is almost completely determined by the material of the bag body of the filter bag 228 and its deformation, so that the radial expansion and contraction of the filter bag 228 can be more accurately controlled. In addition, in this embodiment, the fixing member 227 adopts a plurality of fixing rods arranged horizontally at intervals, and the two ends of these fixing rods are respectively fixedly mounted on the inner wall of the filter chamber 225. Of course, the fixing member 227 can adopt a variety of different structures and can be designed differently according to different needs.

[0031] As a preferred embodiment of the present invention, it may also have the following additional technical features: two sealing rings 2281 are axially spaced apart on the outer side of the upper end of each filter bag 228, and an annular sealing groove matching the filter plate 224 is formed between the two sealing rings 2281. A clamping member 2282 is arranged from top to bottom in the upper port of each filter bag 228, and the clamping member 2282 is connected to the two sealing rings 2281. Due to the use of the clamping member 2282, the two sealing rings 2281 and the annular sealing groove formed between them are tightly connected to the filter plate 224. In order to achieve a reliable sealing effect even if the filter bag 228 produces a large axial vibration, the two sealing rings 2281 can be specifically arranged and formed in the following manner: an extra length of cloth is reserved at the upper end of the filter bag 228, and a sealing member (such as a silicone member) is prepared. The cloth is turned outward and wrapped around the two sealing members and then sewn, so that the sealing ring 2281 is wrapped in the turned-up edge of the upper end of the filter bag 228. At this time, two sealing rings 2281 are formed on the outer sides of the two sealing members at the upper end of the filter bag 228.

[0032] As a preferred embodiment of the present invention, it may also have the following additional technical features: a back-blowing device 24 for performing back-blowing airflow cleaning on each filter bag 228 is arranged above the filter plate 224, and the back-blowing device 24 applies a back-blowing airflow pressure of 1000Pa-3500Pa to each filter bag 228. When the back-blowing device 24 performs back-blowing airflow cleaning on the filter bag 228, the filter bag 228 will first expand radially under the action of the back-blowing airflow, so that the lower end of the filter bag 228 further tightens the pulling structure 229 upward, and when the back-blowing airflow disappears, the filter bag 228 vibrates axially under the action of the rebound force of the pulling structure 229, which makes it easy for particles on the surface of the filter bag 228 to fall from the filter bag 228. The surface peeling force improves the cleaning effect of the filter bag 228; during normal filtering, the smoke to be filtered enters the filter chamber 225, and then passes through the filter bag 228 into the exhaust chamber 226 under the filtering pressure, and the harmful gas that has been initially filtered is discharged from the outlet 222. When a certain thickness of dust is attached to the surface of the filter bag 228, a recoil airflow pressure of 1500pa is applied to the filter bag 228 through the back-blowing device 24, and most of the waste residue is separated from the surface of the filter bag 228. After the recoil airflow disappears, the filter bag 228 vibrates axially under the action of the rebound force of the elastic pulling device, which causes the dust still attached to the surface of the filter bag 228 to separate. After back-blowing, the filtration pressure difference basically returns to the level before filtration, and the back-blowing effect is ideal.

[0033] As a preferred embodiment of the present invention, it may also have the following additional technical features: a flame arrester 25 is arranged in the end of the filtering absorption pipe 21 away from the furnace body 1, which effectively prevents the combustible substances present in the smoke from entering the filtering device 2 and ensures the safety of subsequent filtering and purification of the equipment.

[0034] Please refer to Figure 4-Figure 5 Specifically, in this embodiment, the flame arrester 25 includes a first shell 251, a second shell 252 and a fire-blocking plate 253. The fire-blocking plate 253 is fixed between the first shell 251 and the second shell 252 by bolts. An inlet pipe is provided on one end of the first shell 251 away from the fire-blocking plate 253, and the inlet pipe is connected to the filter absorption pipe 21. An outlet pipe is provided on one end of the second shell 252 away from the fire-blocking plate 253, and the outlet pipe is connected to the feed port 221. In order to achieve a better fire-blocking effect, the flame can be quickly cooled down, thereby reducing the safety hazards of accidents, such as Figure 4 As shown, the first shell 251 and the second shell 252 are both provided with fire-blocking members 254, wherein one fire-blocking member 254 is fixed between the first shell 251 and the fire-blocking plate 253, and the other fire-blocking member 254 is fixed between the second shell 252 and the fire-blocking plate 253. The fire-blocking member 254 is provided with side fire outlets 255 and a central fire outlet 256, and the side fire outlets 255 evenly surround the central fire outlet 256, and the central fire outlet 256 is located in the middle of the fire-blocking member 254, and the cross-section of the central fire outlet 256 is larger than Cross section of the side fire outlet 255; when the combustible material produces a slight spark and enters through the feed pipe, the flame first contacts the fire barrier 254, and the flame exchanges heat under the action of the fire barrier 254, thereby further weakening the impact pressure of the flame. Under the action of the fire barrier 254, the flame comes out through the side fire outlet 255 and the central fire outlet 256 and then contacts the fire barrier plate 253. Under the action of the fire barrier plate 253, the flame is extinguished to achieve a fire barrier effect, thereby reducing the safety hazard of accidents.

[0035] Specifically, in this embodiment, a cleaning mechanism 26 is provided on the conical material discharge channel 223, and the cleaning mechanism 26 includes a scraper 261, a rotating shaft 262 and a motor 263. The scraper 261 is sleeved on the rotating shaft 262, and the motor 263 is arranged on the outer side of the conical material discharge channel 223 and connected to the rotating shaft 262. The motor 263 controls the rotation of the rotating shaft 262, thereby driving the scraper 261 to scrape the waste residue adhered to the inner wall of the conical material discharge channel 223, thereby achieving a better cleaning effect.

[0036] As a preferred embodiment of the present invention, it may also have the following additional technical features: a collecting box 27 is provided at the bottom of the conical discharge channel 223 for storing dust for easy collection.

[0037] The dust removal heating furnace of this embodiment has a reasonable structural design and is easy to use. This structure can also be used for other equipment with similar usage requirements. In this embodiment, the dust removal heating furnace can effectively filter and process the smoke generated by the furnace body 1 in a timely manner, effectively protecting the health of the workers and the working environment, and ensuring the normal operation of the workshop.

[0038] In the description of the above embodiments, greater than, less than, exceeding, etc. are understood as not including the number itself. If there is a description of first or second, it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction between the combinations of these technical features, they should be considered to be within the scope recorded in this specification.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A dust removal heating furnace, characterized in that: include: A furnace body (1), wherein the furnace body (1) is provided with a dust exhaust passage; as well as A filter device (2), the filter device (2) being connected to the dust exhaust passage, the filter device (2) comprising a filter absorption pipe (21) and a separation box (22), the filter absorption pipe (21) being provided with an absorption pump (23), the separation box (22) being provided with a feed port (221) and an air outlet (222), a conical feed channel (223) being provided at the bottom of the separation box (22), the feed port (221) being provided above the conical feed channel (223), one end of the filter absorption pipe (21) being connected to the dust exhaust passage, and one end of the filter absorption pipe (21) being away from the furnace body (1) being connected to the feed port (221).

2. The dust removal heating furnace according to claim 1, characterized in that: A filter plate (224) is installed in the separation box (22), and a plurality of through holes are provided on the filter plate (224). A filter chamber (225) is located below the filter plate (224) in the separation box (22), and an exhaust chamber (226) is located above the filter plate (224) in the separation box (22). The filter chamber (225) and the exhaust chamber (226) are connected. The feed port (221) is provided on the filter chamber (225), and the air outlet (222) is provided on the exhaust chamber (226). A fixing member (227) is provided at one end of the filter chamber (225) away from the filter plate (224), and the fixing member (227) is fixedly connected to the inner wall of the filter chamber (225). A plurality of filter bags (228) are evenly arranged on the filter plate (224), and a pulling structure (229) is provided at one end of each filter bag (228) away from the filter plate (224). The pulling structure (229) is connected and elastically tensioned between the filter bag (228) and the fixing member (227).

3. The dust removal heating furnace according to claim 2, characterized in that: Two sealing rings (2281) are axially spaced apart on the outer surface of the upper end of each filter bag (228), and an annular sealing groove matching the filter plate (224) is formed between the two sealing rings (2281). A clamping piece (2282) is arranged from top to bottom in the upper port of each filter bag (228), and the clamping piece (2282) is connected to the two sealing rings (2281).

4. The dust removal heating furnace according to claim 2, characterized in that: A back-flushing device (24) for cleaning each filter bag (228) with a back-flushing airflow is provided above the filter plate (224), and the back-flushing device (24) applies a back-flushing airflow pressure of 1000 Pa-3500 Pa to each filter bag (228).

5. The dust removal heating furnace according to claim 1, characterized in that: A flame arrester (25) is provided in one end of the filtering and absorbing pipe (21) away from the furnace body (1).

6. The dust removal heating furnace according to claim 5, characterized in that: The flame arrester (25) comprises a first shell (251), a second shell (252) and a fire arrester plate (253); the fire arrester plate (253) is fixed between the first shell (251) and the second shell (252) by bolts; an inlet pipe is arranged on one end of the first shell (251) away from the fire arrester plate (253); the inlet pipe is communicated with the filtering and absorbing pipe (21); and an outlet pipe is arranged on one end of the second shell (252) away from the fire arrester plate (253); the outlet pipe is communicated with the feed port (221).

7. The dust removal heating furnace according to claim 6, characterized in that: Two fire-blocking components (254) are arranged in the flame arrester (25), wherein one fire-blocking component (254) is fixed between the first shell (251) and the fire-blocking plate (253), and the other fire-blocking component (254) is fixed between the second shell (252) and the fire-blocking plate (253), and the two fire-blocking components (254) are provided with side fire outlets (255) and a central fire outlet (256), and the central fire outlet (256) is located in the middle of the fire-blocking component (254).

8. The dust removal heating furnace according to claim 7, characterized in that: The side ignition ports (255) uniformly surround the central ignition port (256), and the cross section of the central ignition port (256) is larger than the cross section of the side ignition ports (255).

9. The dust removal heating furnace according to claim 1, characterized in that: The conical material discharge channel (223) is provided with a material clearing mechanism (26), the material clearing mechanism (26) comprising a scraper (261), a rotating shaft (262) and a motor (263), the scraper (261) being sleeved on the rotating shaft (262), and the motor (263) being arranged on the outer side of the conical material discharge channel (223) and connected to the rotating shaft (262).

10. The dust removal heating furnace according to claim 1, characterized in that: A material collecting box (27) is provided at the bottom of the conical material discharge channel (223).

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